I pick up 4 quarts of the 75W-140, i was looking at Guzzle's website and it calls for Ford's XL-3 friction modifier. The gear oil i bought says limited slip and it's synthetic, but my question is will i need to add the friction modifier?
If it says it's for LS I would try it without modifier the Royal Purple I use in mine doesn't need any modifier. Got tired of only spinning one tire did ya?
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Dave
1999.5 F350 XLT,cc,drw,4X4,a pair of levers,4:10 LS
6637 mod, 4"MBRP cool duals,2 pos chip, ss hpx,ITP pre-pump with holley red pump ,140 V IDM , WW, EBPV deleted,AIH deleted, Autometer gauges
Ok i will try it out and see how it goes without the modifier. I take it that it doesn't have to be the CL-3 from Ford? Yep still just one tire, lol
distortedcloud: no worries on hijacking.
Ya Mike if it chatters you can always add a few ounces of modifier later, you don't want to add to much or you will end up the way you are now with a one wheel peel.
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Dave
1999.5 F350 XLT,cc,drw,4X4,a pair of levers,4:10 LS
6637 mod, 4"MBRP cool duals,2 pos chip, ss hpx,ITP pre-pump with holley red pump ,140 V IDM , WW, EBPV deleted,AIH deleted, Autometer gauges
'00 CC F250 4x4 Auto 4" Magnaflow, S&B Cold Air Intake, AIH, Edge A2/Juice, HPX, Pre-pump, In-Tank, CCK, 203 Thermostat, Air Horns, XM Satellite Radio, 2" lift, 315's, Trucool 4739, '06 Grill and emblem upgrades, RealTree skins and a hot babe in the passenger seat!
Ok so changing the type of fluid will help the limited slip work better? What kinda fluid are you guys using?
__________________ Lee '03 F250 supercab 4x4, 7.3,6 speed. Edge Evo 2, 6637 filter, CCV mod with catch can, shimmed FPR, EBPV brake, King style Zoodad mod, Cold AC mod, wicked wheel, Hutch and Harpoon, prepump filter. Leveling kit, 305/70/16's. 203* stat, coolant bypass filter. 4" st stl MBRP. Upgraded front end goodies in the mail(still waiting on these)
Duh!! Makes since now. Changing the fluid and adding less of the limited slip lub makes more since now. My fingers got faster then my brain. Anyways is the dealer the only place to get the additive for the limited slip?
__________________ Lee '03 F250 supercab 4x4, 7.3,6 speed. Edge Evo 2, 6637 filter, CCV mod with catch can, shimmed FPR, EBPV brake, King style Zoodad mod, Cold AC mod, wicked wheel, Hutch and Harpoon, prepump filter. Leveling kit, 305/70/16's. 203* stat, coolant bypass filter. 4" st stl MBRP. Upgraded front end goodies in the mail(still waiting on these)
Ok so changing the type of fluid will help the limited slip work better? What kinda fluid are you guys using?
Nothing but a rebuild will fix a diff that is worn out. Now if the fluid is going bad, replacing that can bring her back to life. Besides, if you have any kinda mileage on the truck, it is a good idea.
I used RP and it didn't need any modifier. Whatever you choose, it must be synthetic and any modifier must be compatible.
Now is a good time to replace the cover with the newer finned one. I sanded and painted the stocker as I did mine right about the time the new covers were coming out. PITA. This procedure is covered in guzzles page.
A few points, my diff had about 60k on it and lots of crud. I cleaned it out with lots of brake parts cleaner. Also, pull the VSS sensor and clean the fuzz/crud off of that. That hole makes a good fill hole too as it is on top. There are a few pics in my gallery of what I am talking about.
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